Cimitan Samanta, Albonetti Stefania, Forni Laura, Peri Francesca, Lazzari Dario
Ciba Specialty Chemicals S.p.A., via Pila 6/3, Pontecchio Marconi (BO), Italy.
J Colloid Interface Sci. 2009 Jan 1;329(1):73-80. doi: 10.1016/j.jcis.2008.09.060. Epub 2008 Sep 27.
Indium and gallium doped ZnO nanoparticles have been prepared by a hydrothermal reaction in ethanol and methoxyethanol. A comprehensive study of the preparation process, including a thorough investigation by TG-FTIR and TG-MS of the thermal-purification procedure, is presented. Moreover, the effect of thermal conditions and dopant concentration on the structural and optical properties is discussed on the basis of XRD, TEM and UV-vis-NIR results. Reported data indicated that the use of methoxyethanol as a solvent allows an enhanced control of nanoparticle size and favours dopant incorporation into zinc oxide. Near infrared absorption of these materials can be strongly affected by increasing the doping level and upon treating nanoparticles under reducing atmosphere. Preliminary study indicated that this effect is greatly enhanced for gallium-doped zinc oxide.
铟和镓掺杂的氧化锌纳米颗粒是通过在乙醇和甲氧基乙醇中进行水热反应制备的。本文对制备过程进行了全面研究，包括通过TG-FTIR和TG-MS对热纯化过程进行深入研究。此外，基于XRD、TEM和UV-vis-NIR结果，讨论了热条件和掺杂剂浓度对结构和光学性质的影响。报道的数据表明，使用甲氧基乙醇作为溶剂可以更好地控制纳米颗粒的尺寸，并有利于掺杂剂掺入氧化锌中。通过提高掺杂水平和在还原气氛下处理纳米颗粒，这些材料的近红外吸收会受到强烈影响。初步研究表明，这种效应在镓掺杂的氧化锌中会大大增强。
